Observations

Description

Valves are fusiform with short protracted and broadly rounded apices. The axial area is narrow. The central area is transversely rectangular with rounded but irregular borders. The raphe is filiform and straight. Proximal raphe ends are somewhat inflated. Distal raphe ends are bent in the same direction. Striae are radiate and more widely spaced near the valve center.

Links & ID's

Index Nominum Algarum (INA)

California Academy of Sciences (CAS)

North American Diatom Ecological Database (NADED)

NADED ID: 199003

Autecology Discussion

Kobayasiella jaagii was collected among submerged vegetation in Lake Winona in Glacier National Park, Montana. Here the pH was measured at 7.2 and specific conductance was 250 µS/cm. Krammer and Lange-Bertalot (1986) report this taxon as a northern-alpine species in oligotrophic flowing and standing waters.

Images

Lake Winona, Glacier National Park, Montana: home of Kobayasiella jaagii.